A clock integrated circuit is packaged in a Tape & Reel (TR)-shaped package because it is for use as a clock. There are CLOCK GENERATOR, PROCESSOR SPECIFIC uPs/uCs/Peripheral ICs integrated into this digital clock generator.
SI5351A-B07371-GTR Features
SI5351A-B07371-GTR Applications
There are a lot of Silicon Labs SI5351A-B07371-GTR Clock Generators applications.